referrals

Design the referral loop in four steps: pick a trigger moment (after the aha moment or a milestone), choose a share mechanism (in-product one-click link converts best), optimize the referred user's landing experience, and select a reward. Double-sided incentives like a free month for both parties typically convert best for subscription products.

Referral programs reward existing customers for recommending your product to their network, offering higher trust but lower volume. Affiliate programs pay third-party promoters like creators and bloggers ongoing commissions, delivering higher volume with variable trust. Choose based on whether your promoters are customers or external audiences.

Diagnose four causes: awareness (add prominent in-app prompts), timing (ask at peak satisfaction moments), incentive strength (test double-sided or tiered rewards), and friction (reduce sharing to one click with pre-written messages). Run A/B tests on incentive amount, messaging, and placement.

Track participation rate, referrals per referrer, referral conversion rate, and viral coefficient (K = invitations × conversion rate). Compare referral CAC against other channels and referred-customer LTV against organic. Benchmarks: 10-25% of customers referring is good, and referred customers typically show 16-25% higher LTV.

Build product-embedded virality when your product sits on the natural end of the Viral Potential Spectrum: collaboration tools, communication tools, or products with user-facing outputs. Use mechanisms like exposure loops, embeds, and Powered By badges. Backend or internal-only tools should rely on referral programs and partnerships instead.

Prevent self-referrals and referral rings with email verification, device fingerprinting, IP monitoring, and delayed reward payouts after activation. Set maximum referrals per period, require meaningful action before rewards, and use product credit instead of cash to reduce fraudster appeal.